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Title: Synthesis, magnetization, and heat capacity of triangular lattice materials NaErSe 2 and KErSe 2

Abstract

In this paper we report the synthesis, magnetization, and heat capacity of the frustrated magnets A ErSe 2 ( A = Na , K ) which contain perfect triangular lattices of Er 3 + . The magnetization data suggests no long-range magnetic order exists in A ErSe 2 ( A = Na , K ), which is consistent with the heat capacity measurements. Large anisotropy is observed between the magnetization within the a b plane and along the c axis of both compounds. When the magnetic field is applied along the a b plane, anomalies are observed at 1.8 μ B in NaErSe 2 at 0.2 T and 2.1 μ B in KErSe 2 at 0.18 T. Unlike NaErSe 2 , a plateaulike field-induced metamagnetic transition is observed for H c below 1 K in KErSe 2 . Two broad peaks are observed in the heat capacity below 10 K indicating possible crystal electric field (CEF) effects and magnetic entropy released under different magnetic fields. All results indicate that A ErSe 2 are strongly anisotropic, frustrated magnets with field-induced transition at low temperature. The lack of signatures for long-range magnetic order implies that these materials are candidates for hosting a quantum spin liquid ground state.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [1];  [3]; ORCiD logo [4];  [2]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
  2. Univ. of Florida, Gainesville, FL (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division; Univ. of Tennessee, Knoxville, TN (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
OSTI Identifier:
1761718
Grant/Contract Number:  
AC05-00OR22725; FG02-86ER45268
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Materials
Additional Journal Information:
Journal Volume: 3; Journal Issue: 11; Journal ID: ISSN 2475-9953
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; frustrated magnetism

Citation Formats

Xing, Jie, Sanjeewa, Liurukara D., Kim, Jungsoo, Meier, William R., May, Andrew F., Zheng, Qiang, Custelcean, Radu, Stewart, G. R., and Sefat, Athena Safa. Synthesis, magnetization, and heat capacity of triangular lattice materials NaErSe2 and KErSe2. United States: N. p., 2019. Web. doi:10.1103/physrevmaterials.3.114413.
Xing, Jie, Sanjeewa, Liurukara D., Kim, Jungsoo, Meier, William R., May, Andrew F., Zheng, Qiang, Custelcean, Radu, Stewart, G. R., & Sefat, Athena Safa. Synthesis, magnetization, and heat capacity of triangular lattice materials NaErSe2 and KErSe2. United States. https://doi.org/10.1103/physrevmaterials.3.114413
Xing, Jie, Sanjeewa, Liurukara D., Kim, Jungsoo, Meier, William R., May, Andrew F., Zheng, Qiang, Custelcean, Radu, Stewart, G. R., and Sefat, Athena Safa. Tue . "Synthesis, magnetization, and heat capacity of triangular lattice materials NaErSe2 and KErSe2". United States. https://doi.org/10.1103/physrevmaterials.3.114413. https://www.osti.gov/servlets/purl/1761718.
@article{osti_1761718,
title = {Synthesis, magnetization, and heat capacity of triangular lattice materials NaErSe2 and KErSe2},
author = {Xing, Jie and Sanjeewa, Liurukara D. and Kim, Jungsoo and Meier, William R. and May, Andrew F. and Zheng, Qiang and Custelcean, Radu and Stewart, G. R. and Sefat, Athena Safa},
abstractNote = {In this paper we report the synthesis, magnetization, and heat capacity of the frustrated magnets AErSe2(A=Na,K) which contain perfect triangular lattices of Er3+. The magnetization data suggests no long-range magnetic order exists in AErSe2(A=Na,K), which is consistent with the heat capacity measurements. Large anisotropy is observed between the magnetization within the ab plane and along the c axis of both compounds. When the magnetic field is applied along the ab plane, anomalies are observed at 1.8 μB in NaErSe2 at 0.2 T and 2.1 μB in KErSe2 at 0.18 T. Unlike NaErSe2, a plateaulike field-induced metamagnetic transition is observed for H∥c below 1 K in KErSe2. Two broad peaks are observed in the heat capacity below 10 K indicating possible crystal electric field (CEF) effects and magnetic entropy released under different magnetic fields. All results indicate that AErSe2 are strongly anisotropic, frustrated magnets with field-induced transition at low temperature. The lack of signatures for long-range magnetic order implies that these materials are candidates for hosting a quantum spin liquid ground state.},
doi = {10.1103/physrevmaterials.3.114413},
journal = {Physical Review Materials},
number = 11,
volume = 3,
place = {United States},
year = {Tue Nov 26 00:00:00 EST 2019},
month = {Tue Nov 26 00:00:00 EST 2019}
}

Works referenced in this record:

Structural Disorder and Elementary Magnetic Properties of Triangular Lattice ErMgGaO4 Single Crystals
text, January 2018


Quasi-two-dimensional antiferromagnet on a triangular lattice RbFe ( MoO 4 ) 2
journal, March 2003


Geometrical frustration
journal, February 2006

  • Moessner, Roderich; Ramirez, Arthur P.
  • Physics Today, Vol. 59, Issue 2
  • DOI: 10.1063/1.2186278

NaYbS 2 : A planar spin- 1 2 triangular-lattice magnet and putative spin liquid
journal, December 2018


Evidence for a spinon Fermi surface in a triangular-lattice quantum-spin-liquid candidate
journal, December 2016


Hidden multipolar orders of dipole-octupole doublets on a triangular lattice
journal, November 2016


Magnetic transitions under ultrahigh magnetic fields of up to 130 T in the breathing pyrochlore antiferromagnet LiInCr 4 O 8
journal, April 2017


Field-tunable quantum disordered ground state in the triangular-lattice antiferromagnet NaYbO2
journal, July 2019


A spin–orbital-entangled quantum liquid on a honeycomb lattice
journal, February 2018

  • Kitagawa, K.; Takayama, T.; Matsumoto, Y.
  • Nature, Vol. 554, Issue 7692
  • DOI: 10.1038/nature25482

Experimental Realization of a Spin- 1 / 2 Triangular-Lattice Heisenberg Antiferromagnet
journal, January 2012


Magnetization Process of the Spin-1/2 Antiferromagnetic Ising-Like Heisenberg Model on the Triangular Lattice
journal, December 1986

  • Nishimori, Hidetoshi; Miyashita, Seiji
  • Journal of the Physical Society of Japan, Vol. 55, Issue 12
  • DOI: 10.1143/JPSJ.55.4448

Kitaev-Heisenberg Model on a Honeycomb Lattice: Possible Exotic Phases in Iridium Oxides A 2 IrO 3
journal, July 2010


Hidden multipolar orders of dipole-octupole doublets on a triangular lattice
text, January 2016


Chemical disorder and spin-liquid-like magnetism in the van der Waals layered 5 d transition metal halide Os 0.55 Cl 2
journal, June 2019


Valence Bonds in Random Quantum Magnets: Theory and Application to YbMgGaO 4
journal, July 2018


Na2IrO3 as a molecular orbital crystal
text, January 2012


Neutron scattering in the proximate quantum spin liquid α-RuCl3.
text, January 2017

  • Banerjee, Arnab; Yan, Jiaqiang; Knolle, Johannes
  • Apollo - University of Cambridge Repository
  • DOI: 10.17863/cam.11028

Low-temperature crystal and magnetic structure of α RuCl 3
journal, April 2016


Selective measurements of intertwined multipolar orders: Non-Kramers doublets on a triangular lattice
journal, July 2018


Proximate Kitaev quantum spin liquid behaviour in a honeycomb magnet
journal, April 2016

  • Banerjee, A.; Bridges, C. A.; Yan, J. -Q.
  • Nature Materials, Vol. 15, Issue 7
  • DOI: 10.1038/nmat4604

Rare-Earth Chalcogenides: A Large Family of Triangular Lattice Spin Liquid Candidates
journal, October 2018


Anyons in an exactly solved model and beyond
journal, January 2006


Spin liquids in frustrated magnets
journal, March 2010


Topography of Spin Liquids on a Triangular Lattice
journal, May 2018


Magnetic pyrochlore oxides
journal, January 2010

  • Gardner, Jason S.; Gingras, Michel J. P.; Greedan, John E.
  • Reviews of Modern Physics, Vol. 82, Issue 1
  • DOI: 10.1103/RevModPhys.82.53

Simple Variational Wave Functions for Two-Dimensional Heisenberg Spin-½ Antiferromagnets
journal, June 1988


Disorder-Induced Mimicry of a Spin Liquid in YbMgGaO 4
journal, October 2017


Cu 2 IrO 3 : A New Magnetically Frustrated Honeycomb Iridate
journal, October 2017

  • Abramchuk, Mykola; Ozsoy-Keskinbora, Cigdem; Krizan, Jason W.
  • Journal of the American Chemical Society, Vol. 139, Issue 43
  • DOI: 10.1021/jacs.7b06911

Fractionalized excitations in the partially magnetized spin liquid candidate YbMgGaO4
journal, October 2018


Structural disorder and elementary magnetic properties of triangular lattice ErMgGaO4 single crystals
journal, August 2018


Field-induced instability of the quantum spin liquid ground state in the J eff = 1 2 triangular-lattice compound NaYbO 2
journal, May 2019


Anisotropic spin model of strong spin-orbit-coupled triangular antiferromagnets
journal, July 2016


Magnetic Phases of a Highly Frustrated Magnet, ZnCr 2 O 4 , up to an Ultrahigh Magnetic Field of 600 T
journal, November 2011


Neutron scattering in the proximate quantum spin liquid α-RuCl 3
journal, June 2017


Hierarchy of exchange interactions in the triangular-lattice spin-liquid YbMgGaO$_{4}$
text, January 2017


Hyperhoneycomb Iridate β Li 2 IrO 3 as a Platform for Kitaev Magnetism
journal, February 2015


Gapless quantum spin liquid ground state in the two-dimensional spin-1/2 triangular antiferromagnet YbMgGaO4
journal, November 2015

  • Li, Yuesheng; Liao, Haijun; Zhang, Zhen
  • Scientific Reports, Vol. 5, Issue 1
  • DOI: 10.1038/srep16419

Quantum theory of an antiferromagnet on a triangular lattice in a magnetic field
journal, January 1991


Quantum Stabilization of the 1 / 3 -Magnetization Plateau in Cs 2 CuBr 4
journal, March 2009


Relevance of the Heisenberg-Kitaev Model for the Honeycomb Lattice Iridates A 2 IrO 3
journal, March 2012


Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4
journal, December 2016

  • Paddison, Joseph A. M.; Daum, Marcus; Dun, Zhiling
  • Nature Physics, Vol. 13, Issue 2
  • DOI: 10.1038/nphys3971

Rare-Earth Triangular Lattice Spin Liquid: A Single-Crystal Study of YbMgGaO 4
journal, October 2015


Magnetization plateau in the frustrated quantum spin system Cs 2 CuBr 4
journal, March 2003


Field-induced lattice staircase in a frustrated antiferromagnet Cu Fe O 2
journal, November 2006


Kitaev materials beyond iridates: Order by quantum disorder and Weyl magnons in rare-earth double perovskites
journal, February 2017


Anomalous Thermal Conductivity and Magnetic Torque Response in the Honeycomb Magnet α RuCl 3
journal, May 2017


Quantum spin liquid in the spin- 1 2 triangular antiferromagnet Et Me 3 Sb [ Pd ( dmit ) 2 ] 2
journal, March 2008


Resonating valence bonds: A new kind of insulator?
journal, February 1973


Antiferromagnetic Mott insulating state in single crystals of the honeycomb lattice material Na 2 IrO 3
journal, August 2010


Muon Spin Relaxation Evidence for the U(1) Quantum Spin-Liquid Ground State in the Triangular Antiferromagnet YbMgGaO 4
journal, August 2016


Hierarchy of Exchange Interactions in the Triangular-Lattice Spin Liquid YbMgGaO 4
journal, July 2018


Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4
text, January 2016


Na 2 IrO 3 as a Molecular Orbital Crystal
journal, November 2012


Direct evidence for dominant bond-directional interactions in a honeycomb lattice iridate Na2IrO3
journal, May 2015

  • Hwan Chun, Sae; Kim, Jong-Woo; Kim, Jungho
  • Nature Physics, Vol. 11, Issue 6
  • DOI: 10.1038/nphys3322

Geometrical Frustration
book, January 2010


Crystalline Electric-Field Randomness in the Triangular Lattice Spin-Liquid YbMgGaO 4
journal, March 2017


Gapless spin-liquid state in the structurally disorder-free triangular antiferromagnet NaYbO 2
journal, October 2019


Spin-Wave Excitations Evidencing the Kitaev Interaction in Single Crystalline α RuCl 3
journal, March 2017


Works referencing / citing this record:

Frustrated Magnetism in Triangular Lattice TlYbS$_2$ Crystals Grown via Molten Flux
text, January 2020


Field-induced magnetic transition and spin fluctuations in the quantum spin-liquid candidate CsYbSe 2
journal, December 2019


Frustrated Magnetism in Triangular Lattice TlYbS2 Crystals Grown via Molten Flux
journal, February 2020